Fortunato has injured and insulted Montressor and Montressor vows Revenge. Montressor sees Fortunato drunk and dressed as a jester at a carnival.
Amontillado is right through there
Montressor starts his murder and walks over to Fortunato and compliments him. Then Montressor starts to tell Fortunato about his Amontillado he has. Montressor uses luchress to manipulate Fortunato into the catacombs. Amontillado basically is a trap.
Montressor keeps giving Fortunato more wine to get him drunk. Montressor continues to fake empathy and encourage Fortunato to go back. Then they end up in the deepest part of the catacombs. There was a small niche in the room(Montressor had built ahead of time). Then Montressor said"Amontillado is right through that opening". Catcombs is a trail to death.
REST IN PEACE
Montressor chains Fortunato to the wall. That's when Fortunato started to realize what was happening. Then that's when Montressor started to build the wall.
As Montressor is building Fortunato starts to sober up. Fortunato begins jangling the chains and starts screaming. Before the last block Montressore gets a last look at Fortunato. The irony is that Fortunato stands for fortunate on and he wasn't very fortunate.
Fortunato dies and Montressor calls his name but gets no response. Montressor need for revenge is a strong motivator. The internal conflict is Montressor need for revenge.